Which is a pollutant associated with high-tech gadgets in landfills?
A. Carbon Dioxide
B. Oxygen
C. Lead
D. Nitrogen
The pollutants associated with the high tech-gadgets or e-waste include mercury, lead, cadmium, etc. So the correct answer is option C.
An electronic device that has reached the end of its usable life cycle is called as the electronic waste or the e-waste. The electronic waste contains a lot of toxic compounds inside them and should be handled carefully because this e-waste releases the toxic pollutants in the environment which can cause air pollution and also has an impact on respiratory health.
Burning of e-waste can release fine particles (pollutants) into the enviroment which can cause chronic diseases and cancers as well.
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How will antibiotic resistance affect human populations if no action is taken by our healthcare system?
Answer:
Bacteria, not humans or animals, become antibiotic-resistant. These bacteria may infect humans and animals, and the infections they cause are harder to treat than those caused by non-resistant bacteria. Antibiotic resistance leads to higher medical costs, prolonged hospital stays, and increased mortality
Which two inferences about the chipmunk population can be supported with the data gathered by the biologist?
Answer:
The amount of food in the area decreased, causing more chipmunks to
survive to reproductive age.
Explanation:
Hope this helps :)
Chipmunks in later generations showed greater genetic diversity than previous generations, allowing for a greater survival rate in later generations. Individual chipmunks changed their genetic makeup and became more successful in the environment. The correct options are R and S.
What is genetic diversity?Genetic diversity refers to the total number of genetic traits that make up a species' genetic composition.
It varies greatly depending on the number of species present as well as across species, and it can be linked to a species' longevity.
DNA contains all the biological information and variety required to sustain life on our planet.
Genetic variety is referred to as this. It improves a species' and population's resistance to maladies, pests, climatic changes, and other pressures.
According to the findings, Chipmunks had a higher genetic variety in later generations than in earlier generations, which allowed for a higher survival rate in later generations. Individual chipmunks altered their genetic make-up and improved their chances of survival.
Thus, the correct options are R and S.
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Your question seems incomplete, the probable complete question is:
A biologist studies a population of chipmunks. Some of the biologist’s
findings are shown.
Years 1 – 20:
• The population remains below
125.
• Less than half of newborn
chipmunks survive to adulthood.
• Competition for food and
resources limits population
growth.
Year 21 and beyond:
• Ninety percent of newborn
chipmunks survive to adulthood.
• The population increases to over
200 chipmunks.
M. The amount of food in the area decreased, causing more chipmunks to
survive to reproductive age.
P. Chipmunks in later generations showed greater genetic diversity than
previous generations, allowing for a greater survival rate in later generations.
R. Chipmunks migrated from one country to another country to increase the
number of chipmunks in the studied area.
S. Individual chipmunks changed their genetic makeup and became more
successful in the environment.
T. The number of predators in the area decreased, so more chipmunks were
able to survive.
Do this and I'll bark for you:)
(Just type out the info please)
Create a digital table with the subtitles Body systems. Function, Organs and be able to describe all 12 body systems. There are 3 organs that need to be listed.
Answer:
body systems include the skeletal, which supports and moves body and Protects internal organs Mineral storage Blood formation, nervous, which coordinates activities of other organ systems Responds to sensations, the muscular, Locomotion Heat production, the respiratory, which has a Oxygen/carbon dioxide exchange, the endocrine, which regulates body functions by chemicals (hormones), immune system, which is a complex network of cells and proteins that defends the body against infection, cardiovascular / circulatory, which will Transports oxygen and nutrients to tissues, and removes waste produce, the urinary, which will eliminate wastes and regulates pH and volume of blood, and the integumentary system, which is protecting the body from invasion by microorganisms, chemicals, and other environmental factors, and the reproductive, that produces germ cells (eggs and sperm), and is the Environment for growth of fetus (female) and digestive systems.
Some organs include The brain (controls center of the nervous system and is located within the skull), The lungs, you use to hold air in, then let out, The liver, that regulates most chemical levels in the blood and excretes a product called bile. The bladder, which holds urine, The kidneys, which is a very efficient filters for ridding the body of waste and toxic substances, and returning vitamins, amino acids, glucose, hormones and other vital substances into the bloodstream. The heart, which pumps blood and is protected by your skeletal system, The stomach, which will emit a special acid to help digest food before it goes to the intestines, and The intestines, which you use to digest your food.
hope this helps!
Which situation is a result of geotropism?
Select one:
a. Gravity pulls down on all parts of a plant.
b. Leaves are supported on strong stems.
c. A plant falls down when it wilts.
d. A stem turns to grow upward against gravity.
Name two producers in the food web
Groundwater is taken up through a tree's roots so the tree can grow. Which sequence correctly
shows how the water the plant is using will cycle though the water cycle and become groundwater
again?
respiration → condensation → precipitation → groundwater
condensation precipitation groundwater → transpiration
transpiration → condensation → precipitation → groundwater
condensation → precipitation → groundwater → respiration
Answer:
condensation, precipitation, groundwater → transpiration
Explanation:
I hope it will help you
Cuando pasa una molécula de una zona de menor concentración de sustancias a una zona de mayor concentración, el transporte implicado es
Answer:
Transporte activo.
Explicación:
El transporte activo ocurre cuando una molécula se mueve de un área de menor concentración de sustancias a un área de mayor concentración. Los transportes activos utilizaron energía en forma de ATP para mover moléculas en contra del gradiente de concentración. Es lo opuesto al transporte pasivo en el que no se requiere energía para mover moléculas de una región a otra. La principal razón de que ocurra el transporte activo es que mueve moléculas en contra del flujo de difusión. En difusión, la molécula se mueve de un área de mayor concentración a un área de menor concentración.
WILL GIVE BRAINLIEST IF CORRECT
The two mice pictured below are genetically identical. How were they produced?
Answer:
Both of the mice had the same allels by the parents (EE)
Explanation:
Please help me. no links i report you
Answer:
Option b
Explanation:
An unbalanced force moving everyone in Daniel and Maria's direction
(ii)
Which process transfers energy from organisms at one stage in a food chain
to organisms at the next?
Tick the correct box.
reproduction
feeding
movement
photosynthesis
1 mark
Answer:
feeding
Explanation:
when an organism eats another, it gets energy from it. That energy is passed along the food chain
The process by which energy is transferred from organisms at one stage in a food chain to organisms at the next is by feeding, which is present in the second option, as through the eating process and the predator-prey relationship, energies pass.
What is the significance of the food chain and the energy transfer?The food chain in nature is made up of many trophic levels, where one trophic level animal preys on other animals or plants and obtains food from them, so when the animal is eaten by other animals, the energy content passes from one to another, and the energy content from plants continues to decrease to the topmost trophic levels.
Hence, the process by which energy is transferred from organisms at one stage in a food chain to organisms at the next is by feeding, which is present in the second option, as through the eating process and the predator-prey relationship, energies pass.
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If two populations of people share the same DNA "spelling difference" (i.E., mutation), what does this mean about these two populations?
Answer:
It could mean that those two populations could be common ancestors because the spelling differences are the same
Explanation:
The similar spelling variations between the two populations could imply that they share common ancestry.
What is DNA?Deoxyribonucleic acid, or DNA, is the name given to the genetic material carried by humans and nearly all other species. An individual's DNA is present in nearly all of their cells.
Nucleotides are the molecular building components that make up DNA. A phosphate group, a sugar group, and one of four different nitrogen bases make up these building components. Nucleotides are joined into chains and the locations of the phosphate and sugar groups are switched to form DNA strands.
Every cell in the body has DNA in its nucleus. Groups of these firmly bound fragments make form chromosomes. The majority of people possess 46 pairs of chromosomes, or 23 pairs per pair.
Thus, The similar spelling variations between the two populations.
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how does sugar affect Co2 production in yeast
Explanation:
When yeasts eat sugar and turn it into energy, they also produce carbon dioxide.
Suppose 10,000 units of energy are available at the level of the grasses. What is the total number of energy units available by the time energy reaches a coyote that eats herbivores?
Answer:
90 units........................
A scientist discovers a fossil of an ancient reptile.the reptile species appears in the fossil record .what model of evolution does this represent
Answer:
Fossils are the remains of plants, animals, fungi, bacteria, and ... Studying oyster fossils can help paleontologists discover how long ... Using fossil evidence, vertebrate paleontologists deduced that pterosaurs, a group of flying reptiles, ... Some ancient scientists did understand what fossils
Explanation:
Using the Karyotype above, what chromosome has an error?
1
21
X
Y
Answer:
21
Explanation:
there are supposed to be 2 chromosomes, not 3. This person has down syndrome.
How is your body temperature held constant despite different weather temperatures
outside?
Answer:
Core body temperature The body can only stay at a constant temperature if the heat generated is balanced and equal to the heat lost. Although the core temperature must be close to 37°C, fingers and toes can be colder. This is because energy is transferred from the blood as it travels to the fingers and toes.
Answer: When heat activates sweat glands, these glands bring that water, along with the body's salt, to the surface of the skin as sweat. Water evaporating from the skin cools the body, keeping its temperature in a healthy range.
Explanation:
A team of students from UGA are completing a field study to determine the impact the American alligator has on ecosystems in places such as the Okefenokee Swamp in South Georgia over a 3-month period. In one area, they have removed the alligators and in another area they have left the alligators. What is the hypothesis the students are testing?
A.
If the American alligator is a keystone species, then the ecosystem with alligators absent will be healthier and contain greater biodiversity.
B.
If the American alligator is a keystone species, then the ecosystem with alligators present will be healthier and contain greater biodiversity.
C.
If the American alligator is a tertiary consumer, then the ecosystem with alligators present will contain fewer primary producers.
D.
If the American alligator is a tertiary consumer, then the ecosystem with alligators absent will contain more primary producers.
Answer:
B
Explanation:
100% B
If the American alligator is a keystone species, then the ecosystem with alligators present will be healthier and contain greater biodiversity.
The diversity of living organisms on Earth, including plants, animals, microbes, and fungi, is referred to as biodiversity.
The Earth's biodiversity is so diverse that many species are still undiscovered, but because of human actions, many species are facing extinction, endangering the Earth's amazing biodiversity.
The vast variety of life on Earth is referred to as biodiversity. It can be applied more precisely to all the species found in a certain area or environment. Every living creature, including plants, microorganisms, animals, and people, is referred to as biodiversity.
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After a volcano erupts and destroys an ecosystem, a few organisms are able to begin growing from the decaying organic matter left behind. What do we call those organisms that are able to grow in little or no soil that first appear?
Answer:Pioneer species
Explanation: Pioneer species are the first species to live in an area after it has been destroyed as mentioned.
Although strychnine is colorless, it has a very strong bitter taste.
A.True
B.False
What happens to the blood pressure when the blood vessels get longer?
Answer:
:)
Explanation:
The main artery from the heart (aorta) becomes thicker, stiffer, and less flexible. This is probably related to changes in the connective tissue of the blood vessel wall. This makes the blood pressure higher and makes the heart work harder, which may lead to thickening of the heart muscle (hypertrophy).
Which statement describes combined forces that are balanced?
*They result in a net force less than 0 Newtons
*They result in a net force of 0 Newtons
*They result in a net force greater than 0 Newtons
Answer:
option b is right answer
In the past, Native American Indians buried dead fish along with corn seeds. This technique was used because the decomposing dead fish would:
Answer:
Give nutrients for the corn seed to grow
Explanation:
The native Americans were using fish as fertilizers. Since fish fertilizer enhances soil quality, it also enhances soil productivity by supplying the essential nutrients for crop growth Fish fertilizers have blister nitrogen as well as the essential nutrients phosphorus as well as potassium.
This technique became popular when Native Americans taught the colonists such techniques of surviving in wilderness.
True or false: With enough changes in a gene and enough time, two different species can form from one species if a physical barrier separates them
Identify three factors that could keep the human population from
reaching its carrying capacity.
Answer:
help
Explanation:
Robert Hooke looked at a sliver of ______ through his microscope, where he noticed "pores" or "cells" in it. *
Answer:
cork
Explanation:
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The phylum for invertebrate animals with jointed legs is Arthropoda.
The phylum Arthropoda contains a wide diversity of animals with hard exoskeletons and jointed appendages. Many familiar species belong to the phylum Arthropoda—insects, spiders, scorpions, centipedes, and millipedes on land; crabs, crayfish, shrimp, lobsters, and barnacles in water (Fig. 3.72).
1
Select the correct answer.
The
is the underlying message or idea in a literary work.
A.
summary
B.
lesson
Oc.
theme
OD.
subject
Answer:
i think the correct answer is c
Explanation:
hope this is correct
What is the ideal location for a radioactive waste storage facility?
A. in an area with a lot of people
B. far away from ground water
C. in an area that has a lot of earthquakes
D. in an area that already has a lot of background radiation
Answer:
B
Explanation:
It is really bad if the radio active waste spilled and got in the water or get on people. Putting it where other backround radiations are will worsen the area and may affect the waste. the earthquake area would put the facility indanger of coming down and spilling the waste all around it.
^ the question is in the picture above
